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US 2014/0153597 A1Published application
Apparatus for generating short-pulse laser using temporally modulated sideband gain
AssigneeIndustrial Technology Research Institute
InventorsYao-Wun JHANG, Chien-Ming Huang, Hsin-Chia Su, Shih-Ting Lin, Chih-Lin Wang, Hong-Xi Tsau
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Abstract
An apparatus for generating a short-pulse laser using a temporally modulated sideband gain is provided. The apparatus includes a laser diode and an external reflector. By use of a time difference resulted by a nanosecond laser pulse signal at the external reflector, a sideband gain is obtained for generating a short-pulse picosecond laser output.
Claims25
An apparatus for generating a short-pulse laser using a temporally modulated sideband gain, comprising:
- at least one pulse driver modulator;
- a laser diode, having one end connected to the pulse driver modulator, and having a nanosecond pulse repetition rate and a pulse width of a programmable semiconductor optical output;
- an external reflector, having one input end connected to one output end of the laser diode;
- and
- a wavelength filter, having one end connected to one output end of the external reflector, for blocking a long-pulse laser signal having a first wavelength pulse, and outputting a single short-pulse laser signal having a second wavelength pulse at one end thereof.
2 more elements
An apparatus for generating a short-pulse laser using a temporally modulated sideband gain, comprising:
- at least one pulse driver modulator;
- a laser diode, having one end connected to the pulse driver modulator, and having a nanosecond pulse repetition rate and a pulse width of a programmable semiconductor optical output;
- an external reflector, having one input end connected to one output end of the laser diode;
- and
- a wavelength filter, having one end connected to one output end of the external reflector, for blocking a long-pulse laser signal having a first wavelength pulse, and outputting a single short-pulse laser signal having a second wavelength pulse at one end thereof;
- wherein, the external reflector comprises:
- an extension optical fiber, having one end connected to one end of the laser diode;
- an optical fiber coupler, having one end connected to one end of the extension optical fiber, and one other end connected to one end of the external reflector;
- a reflection coupler, having one end connected to one input end of a loop optical fiber, and one other end connected to one output end of the loop optical fiber;
- and
- a sideband filter, having one input end connected to the loop optical fiber, for inputting the laser signal inputted via an input end of the loop optical fiber to one end thereof, and outputting the laser signal to one output end of the loop optical fiber via one output end thereof.
8 more elements
An apparatus for generating a short-pulse laser using a temporally modulated sideband gain, comprising:
- at least one pulse driver modulator;
- a laser diode, having one end connected to the pulse driver modulator, and having a nanosecond pulse repetition rate and a pulse width of a programmable semiconductor optical output;
- an external reflector, having one input end connected to one output end of the laser diode;
- and
- a wavelength filter, having one end connected to one output end of the external reflector, for blocking a long-pulse laser signal having a first wavelength pulse, and outputting a single short-pulse laser signal having a second wavelength pulse at one end thereof;
- wherein, the external reflector comprises:
- an extension optical fiber, having one end connected to one end of the laser diode;
- and a second wavelength reflector, having one end connected to one end of the extension optical fiber and one other end connected to a 4th output of the external reflector.
5 more elements
An apparatus for generating a short-pulse laser using a temporally modulated sideband gain, comprising:
- at least one pulse driver modulator;
- a laser diode, having one end connected to the pulse driver modulator, and having a nanosecond pulse repetition rate and a pulse width of a programmable semiconductor optical output;
- an external reflector, having one input end connected to one output end of the laser diode;
- and
- a wavelength filter, having one end connected to one output end of the external reflector, for blocking a long-pulse laser signal having a first wavelength pulse, and outputting a single short-pulse laser signal having a second wavelength pulse at one end thereof;
- wherein, the external reflector comprises:
- an extension optical fiber, having one end connected to one end of the laser diode;an optical fiber coupler, having one end connected to one end of the extension optical fiber, and one other end connected to one end of the external reflector;
- and a reflection mirror, having one end connected to one end of the optical fiber coupler.
5 more elements
Dependencies are inferred from the claim text.